Hydraulic valve



FIG. 1 is a perspective view of a hydraulic valve showing my new design;

FIG. 2 is a first side view thereof;

FIG. 3 is a second side view thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The broken lines shown in the figures are included for the purpose of illustrating portions of the hydraulic valve which form no part of the claimed design. 

CLAIM The ornamental design for a hydraulic valve, as shown and described. 